摘要
目的:探讨QT离散度(QTd)对老年严重心衰(CHF)病人的预后价值。方法:362例老年严重心衰患者人院时记录基础静态12导联同步心电图,计算QT离散度,平均随访(7.2±4.8)个月。结果:随访期间142例(39.2%)病人死亡.QT离散度为(76.3±28.6)ms,存活者220例,QT离散度为(74.8±30.2)ms。两组间比较无明显差异(P〉0.05);生存分析显示QT离散度对总死亡率(RR1.00。95%CI1.00~1.00),心源性死亡率(RR 1.00,95%CI1.00~1.01)及心律失常性死亡率(RR1.00。95%CI1.00~1.01)均无预后价值(P〉0.05).结论:QT离散度(QTd)对老年严重心衰病人的总死亡率,心源性死亡率及心律失常性死亡率均无预后价值。
Objective: To evaluare the prognostic value of QT dispersion (QTd) for the aged patients with advanced congestive heart failure (CHF). Methods; A baseline ECG was available in 362 aged patients with advanced CHF. They were followed up for (7.2±4.8) months. Results, During the follow-up period of (7.2±4.8) months 142 patients (39. 2%) died. , the QTd was (76.3±28. 6) ms. The QTd of survivors was (74. 8±30. 2) ms. There was no significant difference of QTd between survivors and no survivors (P〉0. 05). Survival analysis revealed that no prognostic information derived from QTd regarding all-cause mortality (risk ratio 1. 00, 95% CI 1. 00 to 1. 00), cardiac mortality (risk ratio 1. 00, 95% CI 1. 00 to 1. 01), or cardiac arrhythmic mortality (risk ratio 1. 00, 95± CI 1. 00 to 1. 01). Conclusion. QT dispersion has no prognostic value for aged patients with advanced CHF.
出处
《心血管康复医学杂志》
CAS
2006年第6期600-602,共3页
Chinese Journal of Cardiovascular Rehabilitation Medicine
关键词
心电描记术
老年人
心力衰竭
充血性
Electrocardiography
The aged, Heart failure, congestive